What are free radicals explain the structure and stability?

Greater the number of alkyl groups attached to the carbon atom carrying the odd electrons, greater is the delocalization of the odd electrons and hence more stable is the alkyl free radical. Allyl and benzyl free radicals are stabilized by resonance. Greater the number of phenyl groups more stable is the free radical.

What is the structure of free radicals?

radical, also called Free Radical, in chemistry, molecule that contains at least one unpaired electron. Most molecules contain even numbers of electrons, and the covalent chemical bonds holding the atoms together within a molecule normally consist of pairs of electrons jointly shared by the atoms linked by the bond.

What are the stability factors of free radical?

Three Factors Which Influence The Stability of Free Radicals: Hybridization, Electronegativity, and Polarizability.

What are radicals in chemistry class 7?

Radicals : A radical is an atom of an element or a group of atoms of different elements that behaves as a single unit with a positive or negative charge on it.

Which radical structure is stable?

A tertiary radical is more stable than a secondary one. A secondary radical is more stable than a primary one.

Where are radicals most stable?

tertiary radical
Specifically, tertiary radical is most stable and the primary and methyl radicals are least stable, that follow the same trend as the stability of carbocations.

What is free radical answer?

A free radical can be defined as an atom or molecule containing one or more unpaired electrons in valency shell or outer orbit and is capable of independent existence. The odd number of electron(s) of a free radical makes it unstable, short lived and highly reactive.

What are radicals Class 9 chemistry?

In chemistry, a radical is an atom, molecule, or ion that has at least one unpaired valence electron. With some exceptions, these unpaired electrons make radicals highly chemically reactive.

Which radical is most stable?

An allyl radical is the most stable (even more stable than a 3� radical) because the true structure of the allyl radical is a hybrid of two resonance structures. The bond and the unpaired electronare delocalized over the entire moleculewhich helps to stabilize the allyl radical.

What is a stable radical?

The stable radicals are defined as the ones that can be readily purified as isolated compounds, which are inert to oxygen and water. Their radical character is long-lived, not only to be detected by the conventional spectroscopic methods but also to be further characterized by other methods in air.

What are some examples of free radicals?

Antioxidants and free radicals. “Some examples include berries, tomatoes, broccoli, spinach, nuts and green tea.”. Antioxidants became well known in the 1990s when scientists began to realize the possible effects of free radicals on cancer development, atherosclerosis and other chronic conditions.

What is free radical mechanism?

Free-radical polymerization (FRP) is a method of polymerization by which a polymer forms by the successive addition of free-radical building blocks. Free radicals can be formed by a number of different mechanisms, usually involving separate initiator molecules.